Enhanced pyroelectric and piezoelectric properties of PZT with aligned porosity for energy harvesting applications.

ABSTRACT: This paper demonstrates the significant benefits of exploiting highly aligned porosity in piezoelectric and pyroelectric materials for improved energy harvesting performance. Porous lead zirconate (PZT) ceramics with aligned pore channels and varying fractions of porosity were manufactured in a water-based suspension using freeze-casting. The aligned porous PZT ceramics were characterized in detail for both piezoelectric and pyroelectric properties and their energy harvesting performance figures of merit were assessed parallel and perpendicular to the freezing direction. As a result of the introduction of porosity into the ceramic microstructure, high piezoelectric and pyroelectric harvesting figures of merits were achieved for porous freeze-cast PZT compared to dense PZT due to the reduce

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC5436493 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature